Flow Neuroscience launched FL-100 in the US, the first FDA-approved at-home brain stimulation device for depression. The prescription headset delivers transcranial direct current stimulation, a low, steady electrical current, to the dorsolateral prefrontal cortex, a brain region often underactive in depression. Approved through the FDA's full premarket approval pathway, FL-100 is indicated for adults with moderate to severe major depression as a standalone or add-on treatment. The headset has already been used by more than 55,000 people in Europe.